Airtac MIJ Adjustable Cylinder MIJ25X50-20
The AirTAC MIJ Adjustable Cylinder MIJ25X50-20 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø25mm bore and 50mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface fits standard ISO 6432 mini-cylinder mounting interfaces.
- BoreØ25 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MIJ Adjustable Cylinder MIJ25X50-20
Dial in your forward end position on the fly with the AirTAC MIJ25X50-20, a round-body stainless steel mini cylinder that lets an external stop screw shorten the extend stroke by up to 20 mm. You get a usable forward range of 30 to 50 mm without swapping parts, while retract remains at the full 50 mm. Built with a riveted stainless barrel and rod, it handles mild washdown and corrosion with ease.
It runs on a 1/8" port and relies on fixed TPU bumper pads to decelerate the stroke end. Note this SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors.
Airtac MIJ Adjustable Cylinder MIJ25X50-20 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ25X50-20 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø25mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MIJ Adjustable Cylinder MIJ25X50-20
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MIJ Adjustable Cylinder MIJ25X50-20 Is Used
Multi-Stop Pin Insertion
Cover several insertion depths with a single cylinder by dialing the forward stop screw between 30 and 50 mm, taking up assembly tolerances without changing the actuator.
Variable Height Push-Off
Eject boxes of varying heights from a palletizer; the stainless build resists damp environments while the bumper pads absorb the 50 kgf theoretical impact at stroke end.
Is the Airtac MIJ Adjustable Cylinder MIJ25X50-20 the Right Cylinder?
When sizing this 25 mm bore, compare it directly against adjacent options. Stepping down to the MIJ20 drops your 0.5 MPa push force to 157 N, while moving up to the MIJ32 raises it to 402 N. The integrated 20 mm adjuster is ideal for taking up mechanical tolerances during setup or covering multiple stop positions with one part number.
Remember that the stop screw sets the end position but acts purely as a bumper, not a mid-stroke lock. The piston will drift if air pressure is lost, so add an external rod lock or pilot check valve for holding suspended loads. For mounting, you can use standard LB foot, FA flange, or TC trunnion brackets, but the SDB pivot block is not available on this adjustable variant.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MIJ Adjustable Cylinder MIJ25X50-20 FAQ
At 0.5 MPa this cylinder pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa the push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. It uses a 1/8" air port and a 10 mm piston rod with an M10x1.25 male thread.
An external stop screw shortens the extend stroke by up to 20 mm on-site, giving a usable forward range of 30 to 50 mm; the retract stroke remains fixed at 50 mm. This specific SKU does not have a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors. You would need the -S variant for position sensing.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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